What percent of 3.8 is 38?

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If 3.8 represents 100%, 38 represents ten times that amount, or 1000%. A general method of solving these kinds of problems is to set up a ratio. Three point eight is to a hundred as 38 is to x, and solve for the unknown:

1) 3.8/100 = 38/x

2) 3800 = 3.8x

3) 1000 = x

With percent questions the best way to do it is to use the formula %/100 = is/of. I teach my students this and it works every time.

Your question "What percent of 3.8 is 38?" will fit right into the formula. ** %** is the unknown, so it goes in the formula as *x*. **Of** is the number 3.8, and **is** will be 38. Fill these into the formula, cross multiply and solve for *x*.

x/100 = 38/3.8 (cross multipy)

3.8x = 3800 (divide both sides by 3.8 to get x alone)

3.8x/**3.8** = 3800/**3.8**

x = 1000%

This makes sence because 3.8 is much smaller than 38, so it makes sence that 38 is 1000% higher than 3.8. Hope this helps. :)

percentage= worked-out value/ used value * 100%

=38/3.8x100%

= 10 x 100%

= 1000%

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